embedded machine learning research engineer - georgist - urbanist - environmentalist

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Joined 1 year ago
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Cake day: June 22nd, 2023

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  • The raison d’être for RISC-V is domain-specific architecture. Currently, computational demands are growing exponentially (especially with AI), but Moore’s Law is ending, which means we can no longer meet our computational demands by scaling single-core speed on general-purpose CPUs. Instead, we are needing to create custom architectures for handling particular computational loads to eke out more performance. Things like NPUs, TPUs, etc.

    The trouble is designing and producing these domain-specific architectures is expensive af, especially given the closed-source nature of computer hardware at the moment. And all that time, effort, and money just to produce a niche chip used for a niche application? The economics don’t economic.

    But with an open ISA like RISC-V, it’s both possible and legal to do things like create an open-source chip design and put it on GitHub. In fact, several of those exist already. This significantly lowers the costs of designing domain-specific architectures, as you can now just fork an existing chip and make some domain-specific modifications/additions. A great example of this is PERCIVAL: Open-Source Posit RISC-V Core with Quire Capability. You could clone their repo and spin up their custom RISC-V posit chip on an FPGA today if you wanted to.



  • Exactly. When the accused has paid off half the jury, you shouldn’t put much stock in the verdict.

    The only thing I care about when determining whether something is a genocide is the facts of the case (which are overwhelmingly in favor of describing the Uyghur genocide as a genocide), not the outcome of a highly political vote by countries all with their own motives and interests.





  • It’s why I think worker-owned coops should be more common. Research shows that they’re a more resilient business model than hierarchical businesses. I think it’s because they can largely avoid the principle-agent problem, wherein executives and investors act on behalf of the company, but their personal incentives do not necessarily align with the company’s. For example, a CEO has a vested interest in pumping up profitability in the short term, even if it’s by slashing R&D funding and alienating customers long-term, so they can get nice numbers to pad their resumé. Likewise, investors just want their investment back.

    With a coop, overall control of the company’s decisions is guided more by the long-term health of the company, as that’s what is best for the workers. It aligns incentives, avoiding the perverse incentives that cause hierarchical businesses to make unsustainable, short-term business decisions.





  • Exactly. Simply having enough fissile material for a bomb was a huge limiting factor for building a bomb. It took several years of refining for the US to have enough for the Trinity Test, Fat Man, and Little Boy. Any physicists in Japan at the time had to have known that fissile material was a limiting factor, given that the theoretical concept of an atomic bomb was well-known physics by the time. The second bomb was to prove Japan couldn’t count on the US having exhausted all their fissile material on the first bomb.